Hop-Ups
for Dummies -
Airbox
Mods by Stanton High
The stock air box on the Honda XR50 is an inefficient air
filter, but here are some mods to make it suck air like an
Uni.
| 1.
There are 3 different things that restrict air flow on
the airbox. First is the actual box, the hole where the
air enters is quite small and very tight. Cutting off
the tip helps it be less restricted. A metal hacksaw cuts
through it very easily. Drilling holes in the bottom of
the box can also be done, I recommend only making holes
in the bottom so dirt wont get stuck inside. |
 |
| 2.
There’s another piece that helps hold the foam (silver
piece) that can also be removed. I don’t think it
would restrict much, but hey, every little bit counts. |
 |
Take
off the foam to get to the third restriction. |
 |
3.
This is the most noticeable change that can be done
to the stock style air box. Pry up one of the edges with a
flathead screwdriver, use some needle nose pliers and as gently
as possible take the plate off. Try not to damage the screen
too much. Take the blunt side of the screwdriver and press
the screen in so no wires are poking out. Reinstall the foam
filter after you clean it and be sure to remember to lightly
oil it.
The
stock air box will now flow as good as any aftermarket air
filter saving the $15.
The
carb will now need more fuel to take advantage of the better
flow, adjust the air screw to where it runs the best for you.
Try 1/4 turns and 1/8 turns because, it will not be far off.
You may need to make more carb adjustments as necessary. Look
for more tips on getting the most out of stock xr50 carb soon
on Minis to the Max!
Later,
Stanton.
About the author: Stanton High has ridden
on wheels for as long as he can remember. In 2003, he discovered
the xr50 and was instantly hooked. Recently, Stanton was in
a bad accident and half his body was burned. "It was
hell," Stanton recalls. But after four months and 13
surguries later he got back on the xr50 and is now riding
harder than ever. These days Stanton rides as much as he can
and is looking for a job in a machine shop. You can check
out some of Stanton's riding in the Rider
Gallery.
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